CVE-2026-12918
Description
The Mail Mint โ Email Marketing, Newsletter, Email Automation & WooCommerce Emails plugin for WordPress is vulnerable to generic SQL Injection via the 'recipients' parameter in all versions up to, and including, 1.24.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. This is a second-order SQL injection: the malicious payload is first stored unsanitized via a POST request to /mrm/v1/campaigns/ (bypassing filter_recipients() validation because an int-cast of a string like '1) OR ...' evaluates to a real numeric ID), and is then triggered by a subsequent GET request to /mrm/v1/campaigns/{id} that deserializes the recipients and passes the raw id string through array_column() into the vulnerable query.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ if you've already worked around this in production โ publish your fix to the community-verified tier.
โ Propose a mitigation on Community โ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.24.1/app/API/Controllers/Admin/CampaignController.php#L1088
- https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.24.1/app/API/Controllers/Admin/CampaignController.php#L304
- https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.24.1/app/Database/models/ContactGroupPivotModel.php#L130
- https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.24.1/app/MrmCommon.php#L1197
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3592458%40mail-mint&new=3592458%40mail-mint
- https://www.wordfence.com/threat-intel/vulnerabilities/id/bf7c500e-311f-4db5-8a54-de7b02fb11dd?source=cve
CWEs
CWE-89
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.